I dispersed reduced graphene oxide in NMP solution and tried to coat it on a glass substrate using dip coating system. But I am not able to get a uniform coating. Please suggest me a solvent and a proper route for coating rGO on a glass substrate.
Rita Joshi
Use alkylbenzenes.
Article Structural Optimization of Alkylbenzenes as Graphene Dispersants
Rita - This seems to be a question of more general interest as I found two closely related questions on this platform. The first one from 2017 is entitled "How to get the good coating of reduced graphene oxide on a glass substrate?" but it does not provide any suitable answers:
https://www.researchgate.net/post/How_to_get_the_good_coating_of_reduced_graphene_oxide_on_a_glass_substrate
The second question is even older (2014) and is entitled "How can I get graphene oxide thin films on a glass substrate?" bit the answers are also not really satisfying:
https://www.researchgate.net/post/How_can_I_get_graphene_oxide_thin_films_on_a_glass_substrate
After all, I think the answer provided by Yuri Mirgorod is most useful.
@Rita Joshi,
I don't think dip-coating is the way to get uniform films unless some special ink formulation is used. We did manage to use a bar coating method to get the homogenous films of reduced graphene oxides. You could use homemade one with a hotplate to use at the same time although there are some suppliers to provide such equipment too.
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